Tapping-valve.



E. P. POOLE.

TAPPING VALVE. APPLICATION FILED JAN. 15, 913.

1 1 1 2,093 atented Sept. 29, 1914.

2 SHEETS-SHEET 19 w g Q rarer...

EDWARD P. POOLE, 0F CONNELLSVILLE, PENNSYLVANIA,

TRYING-VALVE.

Specification of Letters Patent.

Patented Sept. as, rare.

Application filed January 15, 1913. Serial No. 742,269.

To all whom it may concern:

Be it known that I, EDWARD P. Poona, a citizen of the United States,residing at Connellsville, in the county of Fayette and State ofPennsylvania, have invented new and useful Improvements intipping-Valves, of which the following is a specification.

The invention relates to an improvement in valves designed particularlyfor use as tap ping valves wherein the valve is arranged to control theflow of fluid. under pressure from-a receptacle.

The main object of the present invention is the provision of a valve inwhich the parts are constructed for connection with and dispositionwholly within the receptacle, with the operating member or plug of thevalve held to its seat by the pressure of thefluid within the receptaclewhereby such pressure aids in maintaining the valve fluid-tight incontinued use.

The invention in its preferred form of details will be described in thefollowing specification, reference being had particularly to theaccompanying drawings, in which: 7

Figure 1 is a broken view in elevation illustrating the application ofthe preferred form of valve. Fig. 2 is a vertical central section of thepreferred form of valve. Fig. 3 is a longitudinal section of the same.Fig. dis a front view. 'Fig. 5 is a perspective view of the plugremoved. Fig. 6 is a broken View in elevation illustrating a modifiedform of valve in position in the receptacle. F ig. 7 is an enlargedelevation of the valve detached. Fig. 8 is a longitudinal centralsection. Fig. 9 is a transverse section. Fig. 10 is a front view. Fig.11 is a view in elevation partlybroken out of one type of discharge pipefor use in connection with the valve.

Referring particularly to the form of valve illustrated in Figs. 1 to 5inclusive it will be noted that the improvement comprises a casing 1 ofappropriate length comprising a cylindrical body 2 having a reducedexteriorly threaded extension 3 at the 'inner end thereof. Adjacent theouter end of the body is a somewhat-increased diameter as'at 4; andexteriorly threaded through 'such increased portion, the body beyond thethreaded portion 4 being further increased in diametrical-extent and ofangular contour as at 5 whereby to provide an operating head for the Thevalve casing throughout that portion included betw een the operatinghead and the extreme inner end of the valve is formed with internal bore6 the diameter of which gradually decreases from the extreme inner endof the valve toward the outer end thereof. The operating head 5 isformed with internal bore 7 of uniform diameter throughout whichconnects with the bore 6 but is-of somewhat less diameter than theminimum diameter of said bore whereby to provide a shoulder 8 at thejuncture of the bores 6 and 7. "A plug 9 is designed to fit within thevalve bore 6 comprising a truncated cone shaped body portion 10 of asize to accurately fit, both in length and diameter the bore 6 of thecasing, the end of the body having a circular projection 11 at the forward end to fit within the bore 7 of the head, the juncture of the body10 and projection 11 forming a shoulder 12 to coiiperate with theshoulder 8 within the casing. At this time the inclined wall of thecasing bore and the inclined surface of the plug are in intimatenon-locking contact, afterwhich; the cap is secured in place and thevalve is complete. A spring 19 is interposed between the cap and the adacent end of the plug 9, said spring serving to maintain effectivecooper-- ation between the contacting surfaces of the plug and casing.As will be particularly noted from Fig. 3 the extension 13 of the plugprojects wholly beyond the forward end of the operating head 5 of thecasing so that when the valve is in place said extension 13 providesmeans, through the use of suitable tool for operatingthe plug to movethe ports 17 of the plug and easing into or out of registry as may bedesired. In this form, the valve is inserted in the receptacle byscrewing the casing with the contained plug into an opening 20 in thereceptacle, the opening being interiorly threaded to coiiperate with thethreaded portion/l of the casing and the valve as an entirety beingsecured in place by manipulating the same by a suitable tool cooperatingwith the head 5. Any desired form of delivery spout may be used inconnection with the valve; described, said spout being preferablyexteriorly threaded at its inner terminal to engage the portion 15of theplug.

In Figs. 6 to 10 I have illustratdd a slightly modified form of valvewhich includes a casing 21 having a reduced threaded. extension, 22 atthe inner end, a reduced tubular extension 23 at the forward end and anannular fiange24 arranged at the juncture of the body portion and head23. The

body portion of the valve is formed throughout its length with a centralbore 25 of uniform diameter from the inner end toward the outer end, theextension 23 being formed the bore to provide a shoulder 28.

A plug 29 is-designed to be seated in the body 21 having its surface ofform to snugly fit in the bore 25 of the plug. The plugis formed with acircular extension 30 having a maximum diameter corresponding to theinterior diameter of the rib 27, so that when the bore is in place theshoulder 31 formed between the conical section of the plug and thecylindrical extension 30 bears against the shoulder 28 and the casing. Acap 32 is arrangedto engage the threaded end or extension 22 of the"casing whereby the inner end of the casing 'is' sealed after the plughas been secured therein. The plug is interiorly formed with a conicalbore 33 which extends throughout the length of the plug member havingits'maximum diameter at the inner end thereof, the conical borecommunicating with the cylindrical 1 RSfbore or opening 34 in theextension 30, said cylindrical opening having a diameter correspondingto the minimum diameter of the bore of the lug. The plug and casingprovided w th diametrical opposing ports 35 designed to draw intoregistry to open the valve, that is to establish communi-' cationbetween the interior of the receptacle with which the valve is connectedto the bore 33 of the plug.

46 As the exterior diameter .of the extension 30 is less than theinterior diameter of the opening 26 in the casing extension 23 there isprovided between the said extensions in advance of the rib 27 an annularspace or 60 "channel 36, and this space or channel is designed toreceive the inner end of the delivery spout 37 for cooperation with thisparticular form of valve. The spout which may be of any desired formaside from the details described is provided with an operating handle 38and is formed interiorly of its inner or valve engaging end withdiametrically opposed pins 39. The wall of" the extension 30 of the plugis formed with diametrically opposed longitudinally exteading slots 40in which the pins 39 are slidably engaged whereby the spout is soconnected to the valve as to always form a medium for passage of thefluid which v passes through the valve but also as means for turning theplug for registry or nonregistry of the ports as may be desired, itbeing obvious that the engagement of the pins 39 with the slots 40 lockthe spout and valve plug together against other than independentlongitudinal movement of the spout. The modified form of valve issecured in the receptacle by causing the flange 34 to abut the innersurface of the receptacle to which surface it is secured by bolts 7 orrivets, the extension 23 of the valve passing through the opening in thereceptacle with the outer edge of the extension flush with the outersurface of the receptacle. In this form there is, therefore, noprojection go beyond the wall of the receptacle and the .valve may beentirely concealed and the contents of the receptacle prevented frombeing tampered with by securing any desired form of seal over the end ofthe valve. 5

In both forms of valves described it is to be particularly noted theinterior of the plug is of conical formation and that the exterior -ofthe plug and the interior of the casing bore are of conical formation.Furthermore the inclinations given to various conical surfaces aretoward the outer or discharge end of the valve, that is their maximumdiameters are at the inner ends of the. valve. This is particularlyimportant as thereby I am enabled to use pressure of the fluid withinthe receptacle as a means for maintaining the valve plug in fluidsealing relation to the casing, as the pressure of such fluid will byvirtue of its conical surface described tend to more tightly seat theplug in the casing.

WVhat is claimed is A receptacle tapping valve comprising a casingadapted to be secured to the recep- 05 tacle and having a portionthereof projecting beyond the outer surface of the wall ofthe receptacleto permit of the manipulation of the casing, said casing being formedwith an internal bore tapering from the inner end of the casing to apoint approximately in line with the outer surface of the receptaclewhen the casing is in place, the bore of the casing being of truecylindrical form from the forward end of 11:, the taper to the forwardend oi. the casing, the cylinder section of the bore being of diai'neterthan the minimum similar dimension of the tapered section of the bore toprovide a shoulder at the juncture of such here sections, a plug havingan external surface correspoluling exactly to the internal surface ofand fitting both secless tions of the bore of the casing, the inner endof the plug approximately Mining with the inner end of the easing,theouter end of the plug extending in advance of the outer end of thecasing and being formed to permit manipulation oi the plug independentlyof the casing, the

- ping ami casing being each formed with end of the plug; and. a springinterposed v(iimnetrically bpposed ports adapted to be between said capand plug. 10 placed'in registry or non-registry to control In testimonywhereof I afiiX mysigna- .gthe flow of the liquid from the receptacle,ture in presence of two witnesses. I

5 and a, cap having threaded connection with EDWARD P. POOLE.

the inner end of the casing and limited in Witnesses:

its application by such inner end of the cams LLOYD J. SHAW, ing, saidcap being Spaced frqm the inner S. A. COUGHAUNN.

